Powerful Capacity Powerful capacity of 10400mAh lets you charge a smartphone 3~5 times, keeping your devices running all the time. Simultaneously Super-fast Charging Dual USB ports (5V/2A and 5V/1A) allow for charging two devices simultaneously. Built-in special circuit provides full speed for your smartphones. Reliable Power TL-PB10400 s multiple protections of short circuit, over-voltage, over-current, over-charge, over-discharge, and over-heating ensure safe and reliable charging to avoid any potential harm to your devices. High Energy Efficiency Rate Combining high quality circuit, TL-PB10400 greatly reduces unnecessary energy loss while charging, ensuring up to 90% energy efficiency rate. So under full capacity, it can charge a smartphone for 3~5 times, ideal for extended use of mobile devices. Practical Functions for Convenience Practical Flashlight: Built-in flashlight comes in handy for in-house and off road activities. Smart LED Indicator: Four LED lights work as charge indicators to show battery level or charging status. Universal Compatibility Compatible with almost any smart devices like iPhones, iPads, Android smartphones and other 5V input USB-charged devices. - 10400mAh of capacity - Dual USB ports let you quickly charge two devices simultaneously - Compatible with 5V input USB-charged devices like iPhones, iPads and Android smartphones - More than 500 recharge cycles over the life of the battery - Multiple protections of short circuit, over-voltage, over-current, over-charge, over-discharge, and over-heating ensure safe and reliable charging - Built-in flashlight comes in handy for in-house and off-road activities - Four LED lights work as charge indicators to show battery level or charging status